Storage battery.



Patented Dec. I6, .1902.

E. J. KNAPP.

STORAGE BATTERY. (Application 1od My 19, 1902,)-`

(no Modl.)

Winesses;

@3% Inventur Edgardnapn. EH m WF? UNrrED STATES- PArENr OFFICE;

EDGAR J. KNAPP, OF CHICAGO, ILLINOIS.

STORAGE BATTERY.

`u?PllCIIiIGl-1-TION forming part of Letters Patent No. '71 6,056,dated. December 16, 1902.

Application filed May 19, 1902.

To all whom, t may con/cern,.- p

Be it known that I, EDGAR J. KNAPP, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Storage Batteries,(Case No. 1,) of which the following is a full, clear, concise, andexact description, reference being had to the accompanying drawings,forming a partl of this specification.

My invention relates to storage batteries,

i and has for its object the provision of improved structural facilitieswhereby buckling of the storage-battery plates may be avoided; and,generally speaking, it consists of constraining means associated withthe corners of the battery-plates that force the said plates to remainin normal planes notwithstanding great tendency to buckle. p age-batteryplates usually commences at the corners thereof, and in order to furnishthe desired constraining means corner-caps are preferably placed overthe corners of the plates, such corner-caps being made of .substantiallyrigid sheets of` material to furnish the desired constraint, theyserving effectually to prevent buckling of the plate-corners. Thesecorner-caps in the preferred embodiment of the invention also serve tosecure storage-battery separators, such separators being preferablyinterposed between the bat-A tery-plates and the walls of the caps thatare parallel therewith.

I Will explain my invention more fully by reference to the accompanyingdrawings, in which- Figure 1 is a perspective view of a batteryplateconstructed in accordance with the invention. Fig. 2 is a perspectiveview of a modified form of one of the caps employed for guarding thebattery-plates and assembling the separators therewith.

Like parts are indicated by similar characters of reference in bothviews.

The invention is designedfor application to any suitable formofstorage-battery plate a, and the form of separator b may be any suitedto the purpose.` That shown in Fig. l

may becomposed of sheet-rubber, provided with separating-ribs c andapertures d, permitting of the circulation of battery iluid and Bucklingin stor- Serial No. 107,903. (No model.)

preventing the dislodgment of active material. The preferred device oragency for preventing the battery-plate from buckling at the cornersresides in the triangular cornercaps e, preferably separable from thebatteryplate and separator, that may, if desired, be formed ofsheet-rubber fluted and apertured similarly to the separator. The capsare provided with horizontal and vertical Wallsf and g, that engage thehorizontal and vertical edges of the battery-plates, and are alsoprovided with side Walls It and t, that lie parallel with thestorage-battery plates, the side walls h and t being preferablytriangular, as illustrated7 especially for the bottom caps, so that theactive material that may fall from the battery-plates will not find alodging-place upon the caps, which might with certain arrangement ofseparators result in short cir cuit. The caps by being made ofsubstantially rigid sheet-rubber most effectively act to maintain thebattery-plates in the required shape and where desired also serve toret-ain the separators in place in the manner indicated inFig. l.

It is obvious that departures may be made 'from the precise embodimentof my invention herein shown without departing from the spirit of theinvention, and I do not, therefore, wish to he limited to the precisestructure shown; but,

I-Iaving thus described my invention, I claim as new and desire tosecure by Letters Patentl. A storage-battery plate, provided withconstraining means at its corner portions for maintaining it in itsnormal plane against buckling or curling tendencies,the said means beingin the form of corner-caps, substantially as described.

2. A storage-battery plate, provided with constraining means at itscorner portions for maintaining it in its normal plane against bucklingor curling tendencies,the said means being in the form of corner-capshaving horizontal, vertical and side walls, substantially as described.

3. A storage-battery plate, provided with constraining means at itscorner portions for maintaining it in its normal plane against being inthe form of corner-caps having horiplate, of separable corner-capstherefor, e11

zontal, vertical and side Walls, said side Walls gaging the sides of thebattery-plate and prebeing triangular, substantially as described.Venting the same from departing from the 4. The combination with astorage-batter)T normal plane of the battery-plate, substan- I 5 5plate, of a separator therefor, and cornertially as described.

caps inclosing the corners of the storage-bat- In Witness whereof Ihereunto subscribe my tery plate, the separator being interposed benamethis 17th day of May, A. D. 1902.

tween Walls of the caps and a corresponding EDGAR J. KN APP.

Wall of the storage-battery plate,substantially Witnesses: Y Io asdescribed. CHARLES A. BROWN,

5. The combination with a storage-battery GEORGE L. CRAGG.

